This complex region on the west face of Cove Stone II contains a remarkable secret. The sarsen here has been carved to show both a hare and a very large left profiled face. This pair of carvings are described by Professor Meaden on page 128 of his 2016 "Drombeg" book. I take the liberty of summarising him - he describes the human head as facing the direction of midwinter sunset. Illumination by the moving sun facilitaties its appearance when the bulging eyeball is greatly enhanced by the sunshine. As the observer moves clockwise through 90 degrees the head transfigures into a hare.

My own photograph on this page shows a similar image to that in the Professor's book, although my image is lit differently which in turn accentuates features slightly differently.  My notes below are entirely my own opinions.

(By the way you can see a clearer photograph of the Cove Stone II hare carving by clicking here).

An Example Of Anamorphic Art

An image is anamorphic if it can only be viewed from a specifc direction or location. The Cove Stone II giant can only be seen if you look at the western side of the sarsen edge on, and from the south. You find yourself moving back and forth to find the ideal spot to "activate" the sculpture. This is not the only anamorphic sculpture at Avebury, there is another good example here.

Horns

The gigantic human face here on Cove Stone II appears horned, presumably representing either a deity, or a shamanic priest wearing a headress. Furthermore this image is paired with that of a hare, presumably the pair relate to the same myth or ceremony. Interestingly this Cove Stone II pairing is not entirely unique. There are also images of a horned face and a hare on the neighbouring Cove Stone I, visible here and here.  

A Third Face

I suspect there may be a third face in this group, when viewing the hare area from the north-west a possible right profiled head wearing a hood appears (click here to view).